<!DOCTYPE HTML>
<html>
	<head>
		<meta charset="UTF-8">
		<title>Sample</title>
		<meta name="viewport" content="width=device-width, initial-scale=1.0">
		<meta name="HandheldFriendly" content="true">
	</head>
	<body>
		<script>
			if(window.localStorage.book){
			   alert(window.localStorage.book);
			} else{
			   window.localStorage.book = "<b>《开发王》</b>";
			}
		</script>
	</body>
</html>
